Luby

#include <a_samp>

new Float:Aero_LastHealth[200];

public OnPlayerUpdate(playerid){
    new Float:Health;
    GetPlayerHealth(playerid, Health);
    if(Health < Aero_LastHealth[playerid]){
        CallRemoteFunction("OnPlayerLoseHealth", "df", playerid, Aero_LastHealth[playerid] - Health);
    }/* else if(Health > Aero_LastHealth[playerid]){
        CallRemoteFunction("OnPlayerGainHealth", "df", playerid, Health - Aero_LastHealth[playerid]);
    }
    if(Health != Aero_LastHealth[playerid]){
        CallRemoteFunction("OnPlayerHealthChange", "ddd", playerid, Aero_LastHealth[playerid], Health);
    }*/
    Aero_LastHealth[playerid] = Health;

    return 1;
}

IsPlayerAiming(playerid, aimid){
    new Float:X1, Float:Y1, Float:Z1, Float:X2, Float:Y2, Float:Z2;
    GetPlayerPos(playerid, X1, Y1, Z1);
    GetPlayerPos(aimid, X2, Y2, Z2);
//  new keys, own, pwn;
//  GetPlayerKeys(playerid, keys, own, pwn);
//  if(!(keys & KEY_SECONDARY_ATTACK))return false;
    new Float:Distance = floatsqroot(floatpower(floatabs(X1-X2), 2) + floatpower(floatabs(Y1-Y2), 2));
    if(Distance < 100){
        new Float:A;
        GetPlayerFacingAngle(playerid, A);
        X1 += (Distance * floatsin(-A, degrees));
        Y1 += (Distance * floatcos(-A, degrees));
        Distance = floatsqroot(floatpower(floatabs(X1-X2), 2) + floatpower(floatabs(Y1-Y2), 2));
        if(Distance < 1.0){
            return true;
        }
    }
    return false;
}

forward OnPlayerLoseHealth(playerid, Float:lose);
public OnPlayerLoseHealth(playerid, Float:lose){
    for(new g=0;g<GetMaxPlayers();g++)if(IsPlayerConnected(g) && g!=playerid){
        if(IsPlayerAiming(g, playerid))return PlayerPlaySound(g, 1057, 0.0, 0.0, 0.0);
    }
    return true;
}